Seiko Cal. 3812 - 356

This Spring Drive model from 1981 features a 38mm Titanium case. With its 18mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-73395df2ba56]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1981

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